/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors 
 * may be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.monitoring.metrics.jdbc;

import com.mchange.v2.c3p0.ComboPooledDataSource;
import java.sql.SQLException;
import lombok.extern.slf4j.Slf4j;

/**
 * @author Luciano Fiandesio
 */
@Slf4j
public class C3p0MetadataProvider extends AbstractPoolMetadata<ComboPooledDataSource> {
  /**
   * Create an instance with the data source to use.
   *
   * @param dataSource the data source
   */
  public C3p0MetadataProvider(ComboPooledDataSource dataSource) {
    super(dataSource);
  }

  @Override
  public Integer getActive() {
    try {
      return getDataSource().getNumBusyConnections();
    } catch (SQLException e) {
      log.error(
          "An error occurred while fetching number of busy connection from the DataSource", e);
      return 0;
    }
  }

  @Override
  public Integer getMax() {
    return getDataSource().getMaxPoolSize();
  }

  @Override
  public Integer getMin() {
    return getDataSource().getMinPoolSize();
  }

  @Override
  public String getValidationQuery() {
    return "";
  }

  @Override
  public Boolean getDefaultAutoCommit() {
    return getDataSource().isAutoCommitOnClose();
  }

  @Override
  public Integer getIdle() {
    try {
      return getDataSource().getNumIdleConnections();
    } catch (SQLException e) {
      log.error(
          "An error occurred while fetching number of idle connection from the DataSource", e);
      return 0;
    }
  }
}
